Nikolai N. Seleznyov, Yohannan Bar Zo'bi and his "Explanation of the Mysteries": Critical text, Russian translation from Syriac, and Investigation. Russian State University for the Humanities, Institute for Oriental and Classical Studies. Moscow: IOCS RSUH, 2014. ISBN 978-5-98604-444-6.
John Bar Zobi was an East-Syriac author of the late 12th–early 13th c. His Explanation of the Mysteries is a metrical commentary on the liturgy. It is preceded by a prologue narrating the biblical history from the beginning of creation to the redemptive mission of Christ, and followed by a doctrinal part as well as a conclusion that describes symbolism of the church. Hitherto unpublished, the poem is presented in a critical edition which is based on nine manuscripts, including the oldest known one.